CN219631398U

CN219631398U - Conveying device for vertical mill

Info

Publication number: CN219631398U
Application number: CN202321160766.7U
Authority: CN
Inventors: 苏清山; 李红涛; 苏文; 顾洋; 张国强
Original assignee: Weihui Tianrui Cement Co ltd
Current assignee: Weihui Tianrui Cement Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-09-05
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a conveying device for a vertical mill, which relates to the feeding field of the vertical mill and comprises a screw conveyor, wherein a feed pipe and a discharge pipe are respectively arranged at two ends of the screw conveyor, the conveying device also comprises a pretreatment mechanism and N connecting seats, an upper through hole and a lower through hole are formed in the connecting seats, and the rotation of a rotating shaft, a screen drum and two circular plates is driven by the rotation of a driving motor.

Description

Conveying device for vertical mill

Technical Field

The utility model belongs to the field of feeding of vertical mills, and particularly relates to a conveying device for a vertical mill.

Background

The vertical mill is a grinding device integrating fine crushing, drying, grinding, powder selecting and conveying, and is widely used for grinding various solid materials and superfine grinding in industries of cement, building materials, electric power, metallurgy, chemical industry, nonmetallic ores and the like.

In the using process of the vertical mill, the large-sized materials are firstly crushed into small-sized materials by the ore crusher, and the small-sized materials are conveyed into the vertical mill by the material conveying device for grinding.

The existing conveying device is used for conveying materials without pretreatment screening, some small-sized materials are crushed in a crusher and are not uniform, and the large-sized materials are conveyed to a vertical mill to cause excessive abrasion and temperature rise of the mill, so that the service life of the vertical mill is influenced.

We therefore propose a conveying device for a vertical mill to solve the above problems.

Disclosure of Invention

The utility model provides a conveying device for a vertical mill, aiming at the problems that the existing conveying device does not pretreat and screen materials in the process of conveying the materials, and some small materials are crushed in a crusher and are not uniform, wherein the large size of the small materials can cause excessive abrasion and temperature rise of a grinding tool after being conveyed to the vertical mill, and the service life of the vertical mill is influenced.

The utility model solves the technical problems by adopting the scheme that: the utility model provides a conveyor for standing mill, includes screw conveyer, screw conveyer's both ends are provided with inlet pipe and discharging pipe respectively, still includes pretreatment mechanism and N connecting seat, set up through-hole and lower through-hole in the connecting seat, screw conveyer's barrel sets up in last through-hole.

The pretreatment mechanism comprises a pretreatment box, a driving motor, a discharge hopper and two circular plates arranged in the pretreatment box, wherein the pretreatment box is arranged in a lower through hole, a screen drum is fixedly arranged between the two circular plates, a hollow shaft is rotatably arranged in one circular plate, a shaft hole of the hollow shaft is communicated with an inner cavity of the screen drum, the other end of the hollow shaft penetrates out of the side wall of the pretreatment box and is connected with the lower end of a discharge pipe, a rotating shaft is fixedly arranged in the circular plate of the other side, the rotating shaft is rotatably arranged on the side wall of the pretreatment box, and the driving motor is arranged on the outer side face of the pretreatment box and is fixedly connected with an output shaft of the drive motor.

The discharge hopper is arranged at the bottom of the pretreatment box, and the discharge end of the discharge hopper is connected with the feed end of the vertical mill.

As a preferable technical scheme of the utility model, the utility model further comprises a mounting frame and a feeding hopper arranged on the mounting frame, wherein the feeding hopper is arranged above the screw conveyor, and the discharging end of the feeding hopper is connected with the feeding pipe.

As a preferable technical scheme of the utility model, the screw conveyor further comprises a supporting frame, and the top of the supporting frame is fixedly connected with the bottom of the screw conveyor.

As a preferable technical scheme of the utility model, the utility model further comprises two groups of supporting wheels, wherein the supporting wheels are fixedly arranged on the inner wall of the pretreatment box, and the wheel bodies of the supporting wheels are contacted with the outer edges of the circular plates.

As a preferable technical scheme of the utility model, the number of the group of supporting wheels is four, and the four supporting wheels are arranged on the outer edge of the circular plate in a surrounding way.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the rotation of the rotating shaft, the screen cylinder and the two circular plates is driven by the rotation of the driving motor, so that the materials in the screen cylinder can be screened in the rotation process, the materials which are properly crushed are screened out through the screen cylinder and are sent into the vertical mill through the discharge hopper, and on the other hand, when some large materials roll in the screen cylinder, the large materials collide with each other, the volume of the large materials is reduced, and the large materials can be discharged through the screen cylinder, so that the large materials are crushed while being screened, and the problems of excessive abrasion and temperature rise of the millstone caused by conveying the materials with larger volume to the vertical mill are effectively avoided.

2. According to the utility model, the hollow shaft is arranged, so that the circular plate and the screen drum can be supported on one hand, the circular plate and the screen drum have stability in the rotation process, and on the other hand, materials in the discharging pipe can enter the screen drum through the hollow shaft to be subjected to screening and crushing treatment.

3. According to the utility model, two groups of supporting wheels are arranged to respectively support the two circular plates, so that the gravity borne by the hollow shaft and the rotating shaft is reduced, the hollow shaft and the rotating shaft are protected, and meanwhile, the stability of the circular plates and the screen drum in the rotating process is further improved.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is an enlarged schematic view of the front cross-section of the pretreatment tank of the present utility model;

fig. 3 is a schematic side view of the connector of the present utility model.

In the figure: 1 mounting frame, 2 feed hopper, 31 screw conveyor, 32 feeding pipe, 33 discharging pipe, 34 support frame, 41 pretreatment box, 42 discharging hopper, 43 hollow shaft, 44 driving motor, 45 circular plate, 46 rotating shaft, 47 screen drum, 48 supporting wheel, 5 vertical mill, 6 connecting seat, 61 upper through hole, 62 lower through hole.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

Referring to fig. 1-3, the present utility model provides a technical solution for a conveying device of a vertical mill:

embodiment one:

according to the figures 1-3, the device comprises a screw conveyor 31, wherein a feed pipe 32 and a discharge pipe 33 are respectively arranged at two ends of the screw conveyor 31, the device further comprises a mounting frame 1 and a feed hopper 2 arranged on the mounting frame 1, crushed materials are conveyed into the feed hopper 2 through a conveying belt, the feed hopper 2 is arranged above the screw conveyor 31, and the discharge end of the feed hopper 2 is connected with the feed pipe 32.

The pretreatment device further comprises a pretreatment mechanism and N connecting seats 6, in the embodiment, the number of the connecting seats 6 is two, an upper through hole 61 and a lower through hole 62 are formed in the connecting seats 6, and a cylinder of the screw conveyer 31 is arranged in the upper through hole 61.

The pretreatment mechanism comprises a pretreatment box 41, a driving motor 44, a discharge hopper 42 and two circular plates 45 arranged in the pretreatment box 41, wherein the pretreatment box 41 is arranged in a lower through hole 62, a screen drum 47 is fixedly arranged between the two circular plates 45, a first bearing is arranged in one circular plate 45, a hollow shaft 43 is sleeved in the first bearing, the circular plates 45 and the screen drum 47 can be supported by the aid of the hollow shaft 43, the circular plates 45 and the screen drum 47 have stability in the rotation process, a shaft hole of the hollow shaft 43 is communicated with the inner cavity of the screen drum 47, the other end of the hollow shaft 43 penetrates out of the side wall of the pretreatment box 41 and is connected with the lower end of the discharge pipe 33, materials in the discharge pipe 33 can enter the screen drum 47 through the hollow shaft 43 for screening and crushing treatment, a rotating shaft 46 is fixedly arranged in the circular plate 45 on the other side, and a second bearing is sleeved on the rotating shaft 46 and is arranged on the side wall of the pretreatment box 41.

The driving motor 44 is installed on the outer side surface of the pretreatment box 41, the output shaft of the driving motor 44 is fixedly connected with the rotating shaft 46, the screen drum 47 and the two circular plates 45 are driven to rotate through the rotation of the driving motor 44, the screen drum 47 can screen materials in the screen drum 47 on one hand, materials which are properly crushed are screened out through the screen drum 47, on the other hand, when some large materials roll in the screen drum 47, the large materials collide with each other, the volume of the large materials is reduced, the large materials can be discharged through the screen drum 47, and therefore the large materials are crushed while being screened, and the problems that excessive abrasion and temperature rise of a millstone are caused after the large materials are conveyed to the vertical mill 5 are effectively avoided.

The discharge hopper 42 is installed at the bottom of the pretreatment tank 41, and its discharge end is connected with the feed end of the vertical mill 5.

When the conveying device for the vertical mill is particularly used, firstly, the screw conveyor 31 and the driving motor 44 are started, the material in the feed hopper 2 falls into the screw conveyor 31 through the feed pipe 32, and the screw conveyor 31 conveys the material to enable the material to enter the discharge pipe 33;

the materials in the discharge pipe 33 can enter the screen drum 47 through the hollow shaft 43, the rotation of the driving motor 44 drives the rotation shaft 46, the screen drum 47 and the two circular plates 45 to rotate, the screen drum 47 screens the materials in the screen drum 47 in the rotation process, so that the materials which are properly crushed are screened out through the screen drum 47, and meanwhile, when some large materials roll in the screen drum 47, the large materials collide with each other, the large materials are crushed, the volume of the large materials is reduced, and the large materials can be discharged through the screen drum 47;

the finally sieved material is fed into the vertical mill 5 through a discharge hopper 42.

Embodiment two:

on the basis of the first embodiment, as shown in fig. 1, the screw conveyor 31 is supported by a supporting frame 34, and the top of the supporting frame 34 is fixedly connected with the bottom of the screw conveyor 31, so as to ensure the stability of the screw conveyor 31 in the use process.

Embodiment III:

on the basis of the first embodiment, as shown in fig. 2, the device further comprises two groups of supporting wheels 48, the number of the supporting wheels 48 in one group is four, the four supporting wheels 48 are arranged around the outer edge of the circular plate 45, the supporting wheels 48 are fixedly arranged on the inner wall of the pretreatment box 41, the wheel bodies of the supporting wheels 48 are in contact with the outer edge of the circular plate 45, and the two circular plates 45 are respectively supported by the two groups of supporting wheels 48, so that the gravity borne by the hollow shaft 43 and the rotating shaft 46 is reduced, the hollow shaft 43 and the rotating shaft 46 are protected, and meanwhile, the stability of the circular plate 45 and the screen drum 47 in the rotating process is further improved.

Claims

1. A conveyor for standing mill, includes screw conveyer, screw conveyer's both ends are provided with inlet pipe and discharging pipe respectively, its characterized in that: the device also comprises a pretreatment mechanism and N connecting seats, wherein an upper through hole and a lower through hole are formed in the connecting seats, and a cylinder body of the screw conveyor is arranged in the upper through hole;

the pretreatment mechanism comprises a pretreatment box, a driving motor, a discharge hopper and two circular plates arranged in the pretreatment box, wherein a screen cylinder is fixedly arranged between the two circular plates, a hollow shaft is rotatably arranged in one circular plate on one side, the shaft hole of the hollow shaft is communicated with the inner cavity of the screen cylinder, the other end of the hollow shaft penetrates out of the side wall of the pretreatment box and is connected with the lower end of the discharge pipe, a rotating shaft is fixedly arranged in the circular plate on the other side, the rotating shaft is rotatably arranged on the side wall of the pretreatment box, the driving motor is arranged on the outer side surface of the pretreatment box, and the output shaft of the driving motor is fixedly connected with the rotating shaft;

2. A conveyor for a vertical mill according to claim 1, characterized in that: still include the mounting bracket and install the feeder hopper on the mounting bracket, the feeder hopper setting is in screw conveyer's top, and its discharge end is connected with the inlet pipe.

3. Conveyor device for a vertical mill according to claim 1 or 2, characterized in that: still include the support frame, the top of support frame and screw conveyer's bottom fixed connection.

4. A conveyor for a vertical mill according to claim 1, characterized in that: the device also comprises two groups of supporting wheels, wherein the supporting wheels are fixedly arranged on the inner wall of the pretreatment box, and the wheel bodies of the supporting wheels are contacted with the outer edges of the circular plates.

5. The conveying device for a vertical mill according to claim 4, wherein: the number of the group of supporting wheels is four, and the four supporting wheels are arranged on the outer edge of the circular plate in a surrounding mode.